Refrigerator



FIG. 1 is a perspective view of a refrigerator, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another perspective view showing the refrigerator.

The broken lines shown in the figures illustrate environmental or other features that form no part of the claimed design. 

CLAIM The ornamental design for a refrigerator, as shown and described. 